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leetcode-2/Gray_Code.cc at master · zwxalgorithm/leetcode-2 · GitHub

15 lines (15 loc) · 323 Bytes

class Solution
     * for reference: http://en.wikipedia.org/wiki/Gray_code.
    vector<int> grayCode (int n) {
        vector<int> ret;
        int size = 1 << n;
        for (int i = 0; i < size; i++) {
            ret.push_back((i >> 1) ^ i);
        return ret;

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